CVE-2026-25701 Path traversal in sdbootutil
Local attackers can exploit insecure temporary file handling in sdbootutil to read private information or manipulate system files via symlink attacks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-25701?
CVE-2026-25701 is a high-severity path traversal vulnerability in openSUSE sdbootutil, published on 25 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An Insecure Temporary File vulnerability in openSUSE sdbootutil allows local users to pre-create a directory to achieve various effects like: * gain access to possible private information found in /var/lib/pcrlock.d * manipulate the data backed up in /tmp/pcrlock.d.bak, therefore violating the integrity of the data should it be restored. * overwrite protected system files with data from /var/lib/pcrlock.d by placing symlinks to existing files in the directory tree in /tmp/pcrlock.d.bak.
This issue affects sdbootutil: from ? before 5880246d3a02642dc68f5c8cb474bf63cdb56bca.
Weakness: CWE-377
Which versions are affected by CVE-2026-25701?
Linux distribution packages (1)
sdbootutil openSUSE:Tumbleweed | All versions | 1+git20260303.90d816d-1.1 |
How do I fix CVE-2026-25701?
Apply the vendor's patch.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-25701 being exploited?
There is no known exploitation of CVE-2026-25701 in the wild and no public exploit code.
Sources
Also known as GHSA-pgjf-9qg9-f4gv, openSUSE-SU-2026:10287-1, openSUSE-SU-2026:20878-1.